Markowitz formalised these ideas and drew up the mathematical formulae to optimise diversification .
马柯维茨整理了这些观点，推导出数学公式，使多样化达到最优。
For each zone , one of about 50 fertiliser formulae is recommended .
该合作社会从大约50种化肥配方中为每个区块挑出一种予以推荐。
First and foremost , the two indices use different averaging formulae when calculating price changes for each individual item .
第一，这两个指数在计算单项产品的价格变化时套用了不同的平均值公式。
Their work wasn 't purely science or technology ; though grounded in both , it was far from the simple application of formulae or solving of equations .
他们的工作并非纯粹的科学或技术，虽然的确植根于他们，这些工作远非简单公式的应用或方程的求解。
The non-mathematical appear to have their revenge , as the perils of over-reliance on complex symbolic notation and arcane formulae are relentlessly exposed .
